package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.SMSUtils222;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    //手机发送验证码短信
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        String phone = user.getPhone();

        if(StringUtils.isNotEmpty(phone)){
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
        //通过阿里云提供的APi发送短信
        // SMSUtils.sendMessage("万继华的博客","",phone,code);
            
            //将生成的验证码保存到Session(不需要保存到session中了，redis)
            //session.setAttribute(phone,code);
            //将生成的验证码缓存到Redis中 ，设置有效期5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            log.info("验证码为："+code);
            return R.success("短信发送成功");

        }
        return R.error("短信发送失败");

    }


    //移动端用户登录(因为user表中没有code字段，所以可以用map接收传过来的数据，或者用前面学的DTO实体类)
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        //获取验证码和手机号
        String phone = map.get("phone").toString();
        String code = map.get("code").toString();

        //取出session中的验证码(redis)
        //Object codeInSession = session.getAttribute(phone);
        //从Redis中获取缓存的验证码
        Object codeInSession= redisTemplate.opsForValue().get(phone);

        //进行验证码的对比
        if(codeInSession!=null && codeInSession.equals(code)){
            //对比成功之后，判断是否为新用户，是新用户就自动完成注册
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);
            if(user ==null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());

            //用户登录成功，删除Redis中缓存的验证码
            redisTemplate.delete(phone);

            return  R.success(user);

        }

        return R.error("登录失败");

    }



}
